A 1.4 kg block oscillates back-and-forth with a period of 4.5 s while it is attached to spring. When the block is instantaneously at rest at the spring’s maximum extension, a 1.1 kg blob of clay is dropped onto the block. How long does the block and clay take to complete one full back-and-forth oscillation now?

Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.